Part of that ring (though, it’s really more a horseshoe) bisects the Pacific Northwest via the Cascade Range, and it’s here that one of the most active volcanoes of the world can be found.

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that's really ...

The Axial Seamount is a shield volcano, akin to Mauna Loa in Hawaii, the world's most active volcano. Shield volcanoes typically produce runny lava flows resulting in gentle slopes, earning their ...

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system," Scott Bolton, the mission's principal investigator at the Southwest Research Institute in ...